定义一个复数类，重载运算符“+”，“-”，“++”，“>”，使之用于复数的加、减、自加并比较两个复数大小；

Question

定义一个复数类，重载运算符“+”，“-”，“++”，“>”，使之用于复数的加、减、自加并比较两个复数大小；

Answer 1

代码如下：

#include <iostream>
using namespace std;
class Complex
{
public:
    double real;
    double image;
public:
    Complex(double r,double i)
    {
        real=r; image=i;
    }
    Complex(double r)
    {
        real=r; image=0;
    }
    Complex()
    {
        real=0; image=0;
    }

    Complex operator + (const Complex Right) 
    {
        Complex temp;
        temp.real = real + Right.real;
        temp.image = image + Right.image;
        return temp;
    }

    Complex operator - (const Complex Right) {
        Complex temp;
        temp.real = real - Right.real;
        temp.image = image - Right.image;
        return temp;
    }
    Complex operator ++(){
        this->real += 1;
        this->image += 1;
        return *this;
    }

    Complex operator --(){
        this->real -=1;
        this->image -=1;
        return *this;
    }


    Complex operator * (const Complex Right) {
        Complex temp;
        temp.real = real * Right.real - image * Right.image;
        temp.image = real * Right.image + image * Right.image;
        return temp;
    }

    Complex operator /(const Complex Right)
    {
        Complex temp;
        temp.real=real/Right.real;
        temp.image =image/Right.real;
        return temp;
    }

    int operator ==(const Complex Right)
    {
        if (this->real == Right.real && this->image < Right.image)
        {
            return 1;
        }else
            return 0;
    }

    int operator > (const Complex Right)
    {
        if(this->real > Right.real)
            return 1;
        else if (this->real == Right.real && this->image < Right.image)
        {
            return 1;
        }
        else if (this->real == Right.real && this->image == this->image)
        {
            return 0;
        }else
            return -1;
    }

    friend void print(Complex comp);

};


void print(Complex comp)
{
    cout<< comp.real << " + "<<comp.image << "i"<<endl;
}

int main()
{
    Complex c1(3.5,5.5);
    Complex c2(-3.5,1.0);

    Complex t1 = c1 + c2; 
    print(t1);
    Complex t2 = c1 - c2;
    print(t2);
    
    t2--;
    print(t2);

    t1++;
    print(t1);

    if(t1>t2)
        cout << "t1 > t2"<<endl;
    else if(t1==t2)
        cout <<"t1==t2"<<endl;
    else
        cout <<"t1<t2"<<endl;
    return 0;
}